CN202327614U - Oil change and filtration equipment - Google Patents
Oil change and filtration equipment Download PDFInfo
- Publication number
- CN202327614U CN202327614U CN2011205010317U CN201120501031U CN202327614U CN 202327614 U CN202327614 U CN 202327614U CN 2011205010317 U CN2011205010317 U CN 2011205010317U CN 201120501031 U CN201120501031 U CN 201120501031U CN 202327614 U CN202327614 U CN 202327614U
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Abstract
The utility model discloses oil change and filtration equipment, which comprises a wheel-type supporting platform, and an operating table, an air compressor, a main vacuum pump, a branch vacuum pump, an oil supply system, a recycling system and a washing system which are fixed on the wheel-type supporting platform, wherein the operating table respectively controls the oil supply system, the recycling system and the washing system to work cooperatively. Due to the wheel-type supporting platform, the convenience and the flexibility for moving the equipment are improved, the requirement on effective use under different environment conditions is met; according to the three systems, change, filtration and injection processes are finished at one time; the maintenance efficiency is improved, and the maintenance range is expanded; secondary pollution to lubricating oil in the air can be avoided during oil change in a closed state, so that the use reliability is improved; and the oil change and filtration equipment can be widely suitable for an injection or cleaning and maintenance process for the lubricating oil and fuel in various types of large mechanical equipment.
Description
Technical field
The utility model relates to a kind of to the change oil service equipment of oil strain operation of large gear case, fuel tank, belongs to the device maintenance field.
Background technique
Along with process of industrialization, various main equipments continue to bring out, and its physical dimension constantly enlarges; Accordingly; The size that is distributed in drive mechanism wherein is also in continuous increase, and is to ensure the drive mechanism maintainability, in drive mechanism, all can use a large amount of lubricant oil to be lubricated and the processing of lowering the temperature usually; To reduce wearing and tearing, improve serviceability.Like various large hydraulic equipment, steam unit, generator set, aircraft, steamer etc., just at the various lubricant oil of a large amount of uses.Particularly in recent years, along with the raising of energy shortage and people's environmental consciousness, the various Large-scale Wind Turbines in enormous amount ground begin to popularize; And extensively be installed among hills, mountains and rivers, the Plain, receiving the restriction of wind power generating set operating conditions, it installs ground; Traffic and traffic condition are relatively poor, and be higher to the periodic replacement difficulty of lubricant oil in the gear-box, and the gear-box of existing wind power generating set is high apart from 70 meters on ground usually; About 400 liters of oil storages, in the daily process of changing oil, the artificial filling of main employing; Use 20 liters of oil drums to need 20 times up and down, general about 10 hours consuming time, could accomplish the replacing of lubricant oil in the gear-box; Have a strong impact on the efficient of changing oil, simultaneously, the process of changing oil is in open state; Be easy to cause airborne particulate matter to fall into lubricant oil, produce the lubricant oil secondary pollution, influence the service property (quality) of lubricant oil.
How comprehensive the more behaviour in service during oil change of various main equipments of considering improve operating process and operating environment, just becomes the utility model problem to be solved.
Summary of the invention
In view of above-mentioned existing situation, the utility model aims to provide a kind of wide adaptability, multiple functional, and the oil filtering unit of changing oil to satisfy the replacing oil require of main equipment simple, conveniently.
The utility model is realized through following technological scheme:
A kind of oil filtering unit of changing oil; Comprise a wheeled support platform; And be separately fixed at operation bench, air compressor, branch road vacuum pump, oil supply system and the reclaiming system on the wheeled support platform; Oil supply system comprises oil supply tank, filter, fuel feeding oil pump and measuring instrument, and filter is connected on the oil transportation path between oil supply tank and the fuel feeding oil pump; Measuring instrument is connected on the oil feed line of fuel feeding oil pump output terminal; Reclaiming system comprises recycling can, reclaims oil pump, reclaims measuring instrument, magnetic filter and a filter set; Magnetic filter and filter set are linked in sequence at the recycling can oil outlet and reclaim on the oil transportation path between the oil pump, and the oil outlet that the recycling can oiler is handled fuel tank or gear-box through reclaim line and desire is communicated with; Reclaiming measuring instrument is connected on the shared flushing line of recovered oil pump output terminal; The branch road vacuum pump is communicated with oil feed line and flushing line respectively; The output terminal of said air compressor is communicated with the cavity top of oil supply tank and recycling can respectively; Operation bench is controlled branch road vacuum pump, air compressor, oil supply system and reclaiming system co-ordination respectively.
A kind of oil filtering unit of changing oil also comprises a main vacuum pump, and main vacuum pump is fixed on the wheeled support platform and accepts the control of operation bench, and main vacuum pump is communicated with the oil transportation path of oil supply tank and recycling can respectively.
A kind of oil filtering unit of changing oil also comprises a transport pipe reel, and oil feed line, flushing line and reclaim line are wrapped in respectively on the transport pipe reel.
Said oil supply system also comprises a fuel feeding heater, and said fuel feeding heater is connected on the oil transportation path of oil supply tank
Said reclaiming system also comprises a recovery heater, and said recovery heater is connected on the oil transportation path of recycling can.
A kind of oil filtering unit of changing oil also comprises rinse-system, and rinse-system comprises a can,douche, and can,douche is fixed on the wheeled support platform, and the can,douche outlet is communicated with the recovery oil pump through pipeline; The output terminal of air compressor is communicated with the cavity top of can,douche.
Said main vacuum pump is communicated with the can,douche export pipeline.
Said rinse-system also comprises a flushing heater, and said flushing heater is connected on the export pipeline of can,douche.
The described a kind of oil filtering unit of changing oil of the utility model, adopting wheeled support platform is carrier, convenience that increase equipment moves and flexibility; To satisfy the effective use under the varying environment condition, simultaneously, oil supply system, reclaiming system and rinse-system are set on wheeled support platform; Under the cooperation through fuel feeding oil pump, recovery oil pump and main vacuum pump, branch road vacuum pump and air compressor; Accomplish sealing condition changing oil down, oil strain processing, realized draining the oil-wash-filling process once accomplishes, and improved maintenance efficiency; Expand maintenance span, made things convenient for use.The secondary pollution that the process of changing oil under the closed state has not only avoided lubricant oil in air, possibly receive; Also can reduce lubricant oil exposure or leakage to environment damage; Operational safety is high, it is simple to control, the speed of changing oil improves greatly, can be adaptable across the filling or the clean and maintenance process of lubricant oil, fuel oil in the various heavy mechanical equipments.
Description of drawings
Fig. 1 is the structural principle schematic representation of the utility model.
Embodiment
Do further detailed description below in conjunction with 1 pair of the utility model of accompanying drawing:
Oil change is an example wind-driven generator wheel-box is carried out more; The described a kind of oil filtering unit of changing oil of the utility model; Comprise a wheeled support platform and a transport pipe reel 2, and be fixed on operation bench, air compressor 15, main vacuum pump 8, branch road vacuum pump 4, oil supply system, rinse-system and reclaiming system on the wheeled support platform.Wherein, oil supply system is responsible for that wind-driven generator wheel-box 1 is carried out fresh oil and is supplied with, and guarantees that fresh oil adds process and can carry out smoothly; Rinse-system is responsible for that wind-driven generator wheel-box 1 is carried out inside and is cleaned, and it is in service owing to the residue that weares and teares and produce to remove gear, and protection gear running improves ride quality; Reclaiming system is responsible for lubricant oil discarded in the gear-box 1 is reclaimed, and under the situation of needs, lubricant oil is filtered maintenance, guarantees the lubricant oil service property (quality); Wheeled support platform is used for supporting and mobile whole system, and convenient moving flexibly with reliable under severe environmental conditions used; Transport pipe reel 2 is used to twine long oil feed line 22, reclaim line 20 and flushing line 21, makes things convenient for carrying and using of pipeline; Operation bench then is the command center of oil filtering unit of changing oil, and is used for issue and controls instruction, coordinates air compressor 15, main vacuum pump 8, branch road vacuum pump 4, oil supply system, reclaiming system and rinse-system work.
Oil supply system mainly comprises oil supply tank 11, fuel feeding heater 7, filter 6, fuel feeding oil pump 5 and measuring instrument 17.Wherein, oil supply tank 11 is fixed on the wheeled support platform.Fuel feeding heater 7 and filter 6 are linked in sequence on the oil transportation path between oil supply tank 11 and the fuel feeding oil pump 5.Fuel feeding heater 7 is connected filter 6 the place aheads, and fuel feeding heater 7 reduces its density, the mobile raising with after comparatively the lubricant oil of thickness heats.Filter 6 mainly filters the lubricant oil on the oil transportation path comprehensively, guarantees the interpolation quality of lubricant oil.Measuring instrument 17 is connected on the oil feed line 22 of fuel feeding oil pump 5 output terminals, and oil strain process that measuring instrument 17 can be observed at any time and grasp is changed oil is conveniently used and controlled.The outermost end of oil feed line 22 can be communicated with the filler opening of wind-driven generator wheel-box 1, thereby forms the oil transportation channel of relative closure, has guaranteed the Security and the reliability of fresh oil filling.
Reclaiming system comprises recycling can 13, reclaims oil pump 16, reclaims heater 19, reclaims measuring instrument 3, magnetic filter 10 and a filter set 9.Recycling can 13 is fixed on the wheeled support platform, and recycling can 13 is used to hold the waste lubrication oil of recovery.Reclaiming heater 19, magnetic filter 10 and filter set 9 is linked in sequence on the oil transportation path between recycling can oil outlet and the recovery oil pump 16; Reclaiming heater 19 at first heats the lubricant oil of flowing through; Magnetic filter 10 is used for the contained irony impurity of lubricant oil is filtered, 9 comprehensive filtration treatment of accomplishing lubricant oil of filter set.Reclaiming measuring instrument 3 is connected on the shared flushing line 21 that reclaims oil pump 16 output terminals.The oiler of recycling can 13 then is communicated with the oil outlet of wind-driven generator wheel-box 1 through reclaim line 20, thereby forms the drainback passage of a sealing through flushing line 21 and reclaim line 20.
Rinse-system comprises a can,douche 12 and a flushing heater 18.Can,douche 12 is fixed on the wheeled support platform, is used to load washing solution in the can,douche 12.Because reclaiming system and rinse-system can only have a system in running order when work, thus be simplified structure, reduce cost, reduced volume, reclaiming system and rinse-system are understood a shared recovery oil pump 16 and a shared flushing line 21.Flushing heater 18 is connected the can,douche outlet and reclaims on the pipeline between the oil pump 16, and the can,douche outlet cooperates can,douche 12 and recycling can 13 to accomplish the flushing and the lubricant oil callback course of gear-box 1 through valve pilot line coupled condition.
Be to improve the flushing reliability, guarantee flushing process efficiently, carry out smoothly, main vacuum pump 8 respectively with the pipeline road of oil supply tank 11, recycling can 13; And be communicated with the export pipeline of can,douche 12,8 pairs of each export pipelines of main vacuum pump are done and are vacuumized processing, can effectively reduce outlet pressure; Improve the speed that pot liquid flows out; Reduce resistance to outflow, branch road vacuum pump 4 then is communicated with flushing line 21 and oil feed line 22 respectively, to reduce the pressure of flushing line 21 and oil feed line 22; Further improve the oil transportation condition, improve oil transportation efficient.Certainly, for guaranteeing each pipeline co-ordination, on each pipeline, also be provided with the coordination control that valve carries out the pipeline connection state.
For further increasing the pressure of each tank body; Avoid wind-driven generator wheel-box 1 apart from the higher oil transportation that brings in ground, cleaning difficulty; The output terminal of air compressor 15 also is communicated with the cavity top of oil supply tank 11, can,douche 12 and recycling can 13 respectively; Utilize pressurized air to carrying out pressurized treatment in the jar, promote pot liquid and can accomplish the fresh oil filling of wind-driven generator wheel-box 1, old oil replacing or cleaning process smoothly to more eminence is mobile.Certainly, because the new product air compressor also has electricity generate function,,, improved the equipment applicability to eliminate the entire equipment dependence of power supply to external world of turning round so the electric power safeguard during this equipment operation also can be provided by the new product air compressor.
During actual the use, at first, promote the whole oil filtering unit of changing oil to the wind-driven generator below through wheeled support platform; Suspension hook through autogamy on the wind-driven generator rises to gear-box 1 place with oil feed line 22, reclaim line 20 and flushing line 21, and manual operation reclaim line 20 is communicated with the gear-box oil outlet, and flushing line 21 is communicated with the gear-box filler opening; Close recycling can oil outlet valve, the operation operation bench sends instruction, starts and reclaims oil pump 16; Along with the impetus that reclaims oil pump 16; Sump oil in the gear-box 1 constantly sucks in the recycling can 13 through reclaim line 20 and stores, and sump oil is removed and accomplished in gear-box 1, closes and reclaims oil pump 16.Start main vacuum pump 8 and branch road vacuum pump 4, the valve of corresponding adjustment main vacuum pump 8 and branch road vacuum pump 4, the pressure between control reduction can,douche 12 and the gear-box 1 in oil transportation path and the flushing line 21; Start and reclaim oil pump 16 and air compressor 15, open the valve on the path, along with the heating of can,douche 12 superchargings and flushing heater 18; Washing solution is sent into gear-box 1 with elevated pressures and speed through flushing line 21; Completion is to the flushing of gear-box 1 inwall, and along with the continuation of reclaiming oil pump 16 promotes, washing solution constantly converges in the recycling can 13 from gear-box 1 after the sucking-off; In conjunction with the indication of reclaiming measuring instrument 3; Washing solution emptying in gear-box 1 is closed main vacuum pump 8, branch road vacuum pump 4, air compressor 15 and is reclaimed oil pump 16, and cleaning process is accomplished.At last, artificial dismounting flushing line 21 is connected with the gear-box filler opening, and oil feed line 22 is connected on the gear-box filler opening; The control valve of main vacuum pump 8, branch road vacuum pump 4 on the corresponding adjustment path, and after closing gear-box oil outlet valve, start fuel feeding oil pump 5, air compressor 15, main vacuum pump 8 and branch road vacuum pump 4; After making pipeline road and oil feed line 22 step-downs; Along with the supercharging in the oil supply tank 11 and the heat treated of fuel feeding heater 7, the lubricant oil in the oil supply tank 11 is pressed in the gear-box 1 fast, in conjunction with the indication of measuring instrument 17; Accomplish the fresh oil filling process under the closed state, the whole process of changing oil is accomplished.Its mode with drain the oil-wash-three steps of annotating are the basis, and are simple to operate, quick, safeguard comprehensively, reliable.
In addition, because the actual needs of safeguarding, the utility model also provides a kind of oil strain function, promptly on the pipeline road between recycling can 13 and the recovery oil pump 16, also is connected with and reclaims heater 19, magnetic filter 10 and a filter set 9.When filtering the lubricant oil in original gear-box 1 when safeguarding, reclaim line 20 is connected between recycling can oiler and the gear-box oil outlet, simultaneously; Flushing line 21 is communicated with the gear-box filler opening; Control valve on each parts of corresponding adjustment makes 1 loop that forms a sealing of recycling can 13 and gear-box, starts air compressor 15, main vacuum pump 8, branch road vacuum pump 4 and reclaims oil pump 16; Lubricant oil in the gear-box 1 forms under recovery oil pump 16 and each loine pressure cooperation and circulates; Flow through when reclaiming heater 19, can carry out hyperthermic treatment, improve mobile lubricant oil; When through magnetic filter 10, the irony impurity that effectively contains in the lubricant removal; When flowing through filter set 9, can filter lubricant oil comprehensively, thereby in cyclic process, accomplish filtration treatment lubricant oil, last, filtration is closed the valve on the gear-box oil outlet after accomplishing, and flow of lubricant is got back in the gear-box 1, filters and finishes.
Claims (8)
1. oil filtering unit of changing oil; It is characterized in that; Comprise a wheeled support platform; And be separately fixed at operation bench, air compressor, branch road vacuum pump, oil supply system and the reclaiming system on the wheeled support platform, and said oil supply system comprises oil supply tank, filter, fuel feeding oil pump and measuring instrument, said filter is connected on the oil transportation path between oil supply tank and the fuel feeding oil pump; Said measuring instrument is connected on the oil feed line of fuel feeding oil pump output terminal; Said reclaiming system comprises recycling can, reclaims oil pump, reclaims measuring instrument, magnetic filter and a filter set; Said magnetic filter and filter set are linked in sequence at the recycling can oil outlet and reclaim on the oil transportation path between the oil pump, and the oil outlet that the recycling can oiler is handled fuel tank or gear-box through reclaim line and desire is communicated with; Said recovery measuring instrument is connected on the shared flushing line of recovered oil pump output terminal; Said branch road vacuum pump is communicated with oil feed line and flushing line respectively; The output terminal of said air compressor is communicated with the cavity top of oil supply tank and recycling can respectively; Said operation bench is controlled branch road vacuum pump, air compressor, oil supply system and reclaiming system co-ordination respectively.
2. a kind of oil filtering unit of changing oil according to claim 1; It is characterized in that; Also comprise a main vacuum pump, said main vacuum pump is fixed on the wheeled support platform and accepts the control of operation bench, and main vacuum pump is communicated with the oil transportation path of oil supply tank and recycling can respectively.
3. a kind of oil filtering unit of changing oil according to claim 1 is characterized in that, also comprises a transport pipe reel, and said oil feed line, flushing line and reclaim line are wrapped in respectively on the transport pipe reel.
4. according to claim 1,2 or 3 described a kind of oil filtering units of changing oil, it is characterized in that said oil supply system also comprises a fuel feeding heater, said fuel feeding heater is connected on the oil transportation path of oil supply tank
5. according to claim 1,2 or 3 described a kind of oil filtering units of changing oil, it is characterized in that said reclaiming system also comprises a recovery heater, said recovery heater is connected on the oil transportation path of recycling can.
6. according to claim 1,2 or 3 described a kind of oil filtering units of changing oil; It is characterized in that, also comprise rinse-system, said rinse-system comprises a can,douche; Said can,douche is fixed on the wheeled support platform, and the can,douche outlet is communicated with the recovery oil pump through pipeline; The output terminal of said air compressor is communicated with the cavity top of can,douche.
7. a kind of oil filtering unit of changing oil according to claim 6 is characterized in that said main vacuum pump is communicated with the can,douche export pipeline.
8. a kind of oil filtering unit of changing oil according to claim 6 is characterized in that said rinse-system also comprises a flushing heater, and said flushing heater is connected on the export pipeline of can,douche.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205010317U CN202327614U (en) | 2011-12-06 | 2011-12-06 | Oil change and filtration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205010317U CN202327614U (en) | 2011-12-06 | 2011-12-06 | Oil change and filtration equipment |
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| Publication Number | Publication Date |
|---|---|
| CN202327614U true CN202327614U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205010317U Expired - Fee Related CN202327614U (en) | 2011-12-06 | 2011-12-06 | Oil change and filtration equipment |
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| CN (1) | CN202327614U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817999A (en) * | 2012-07-18 | 2012-12-12 | 上海叠泉信息科技有限公司 | Oil change system of wind driven generator gearbox and leak-proof security protection method for oil chang |
| CN102818000A (en) * | 2012-07-18 | 2012-12-12 | 上海叠泉信息科技有限公司 | Oil change system and oil change method for modularity wind driven generator gearbox |
| CN103807930A (en) * | 2012-11-07 | 2014-05-21 | 珠海格力电器股份有限公司 | Outdoor unit, method for filling lubricating oil into outdoor unit and air conditioner |
| CN105333287A (en) * | 2015-08-07 | 2016-02-17 | 洛阳中重自动化工程有限责任公司 | Pipeline processing method for oil liquid centralized filling system of grinding machine |
| CN105333291A (en) * | 2015-08-07 | 2016-02-17 | 洛阳中重自动化工程有限责任公司 | Oil liquid centralized filling and recycling system and method for mill |
| CN106115596A (en) * | 2016-06-30 | 2016-11-16 | 中铁伟业（北京）新技术有限公司 | A kind of Vehicular intelligent cleans oil change system and method for changing oil |
| CN106704803A (en) * | 2017-02-21 | 2017-05-24 | 徐州赛诺过滤科技有限公司 | Filtering and oil-changing device for gear box of draught fan and oil change vehicle thereof |
| CN108775500A (en) * | 2018-08-23 | 2018-11-09 | 重庆合聚达智能装备有限公司 | Multi-mode robot fuel loading system |
| CN108775501A (en) * | 2018-08-23 | 2018-11-09 | 重庆合聚达智能装备有限公司 | Robot oil supply system |
| CN110081155A (en) * | 2019-03-13 | 2019-08-02 | 西安辉浩机电科技有限公司 | A kind of speed reducer Rapid Cleaning matches oil system and method |
| CN112709807A (en) * | 2019-10-25 | 2021-04-27 | 北京国电思达科技有限公司 | Oil change system and method for speed reducer |
| CN114135655A (en) * | 2021-12-23 | 2022-03-04 | 无锡腾马精密机械有限公司 | Low-noise stable planetary gear speed reducer |
-
2011
- 2011-12-06 CN CN2011205010317U patent/CN202327614U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818000A (en) * | 2012-07-18 | 2012-12-12 | 上海叠泉信息科技有限公司 | Oil change system and oil change method for modularity wind driven generator gearbox |
| CN102817999B (en) * | 2012-07-18 | 2015-03-11 | 上海叠泉信息科技有限公司 | Oil change system of wind driven generator gearbox and leak-proof security protection method for oil chang |
| CN102817999A (en) * | 2012-07-18 | 2012-12-12 | 上海叠泉信息科技有限公司 | Oil change system of wind driven generator gearbox and leak-proof security protection method for oil chang |
| CN103807930B (en) * | 2012-11-07 | 2017-05-31 | 珠海格力电器股份有限公司 | Outdoor unit, method for filling lubricating oil into outdoor unit and air conditioner |
| CN103807930A (en) * | 2012-11-07 | 2014-05-21 | 珠海格力电器股份有限公司 | Outdoor unit, method for filling lubricating oil into outdoor unit and air conditioner |
| CN105333287A (en) * | 2015-08-07 | 2016-02-17 | 洛阳中重自动化工程有限责任公司 | Pipeline processing method for oil liquid centralized filling system of grinding machine |
| CN105333291A (en) * | 2015-08-07 | 2016-02-17 | 洛阳中重自动化工程有限责任公司 | Oil liquid centralized filling and recycling system and method for mill |
| CN106115596A (en) * | 2016-06-30 | 2016-11-16 | 中铁伟业（北京）新技术有限公司 | A kind of Vehicular intelligent cleans oil change system and method for changing oil |
| CN106115596B (en) * | 2016-06-30 | 2018-05-25 | 中铁伟业（北京）新技术有限公司 | A kind of Vehicular intelligent cleaning oil change system and method for changing oil |
| CN106704803A (en) * | 2017-02-21 | 2017-05-24 | 徐州赛诺过滤科技有限公司 | Filtering and oil-changing device for gear box of draught fan and oil change vehicle thereof |
| CN108775500A (en) * | 2018-08-23 | 2018-11-09 | 重庆合聚达智能装备有限公司 | Multi-mode robot fuel loading system |
| CN108775501A (en) * | 2018-08-23 | 2018-11-09 | 重庆合聚达智能装备有限公司 | Robot oil supply system |
| CN110081155A (en) * | 2019-03-13 | 2019-08-02 | 西安辉浩机电科技有限公司 | A kind of speed reducer Rapid Cleaning matches oil system and method |
| CN110081155B (en) * | 2019-03-13 | 2022-05-24 | 西安辉浩机电科技有限公司 | Rapid cleaning and oil distribution system and method for speed reducer |
| CN112709807A (en) * | 2019-10-25 | 2021-04-27 | 北京国电思达科技有限公司 | Oil change system and method for speed reducer |
| CN114135655A (en) * | 2021-12-23 | 2022-03-04 | 无锡腾马精密机械有限公司 | Low-noise stable planetary gear speed reducer |
| CN114135655B (en) * | 2021-12-23 | 2023-09-15 | 无锡腾马精密机械有限公司 | Low-noise stable planetary gear reducer |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Zhijing Document name: Notification to Pay the Fees |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131206 |